CN1930587A - Image visualization - Google Patents
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- CN1930587A CN1930587A CNA2005800082176A CN200580008217A CN1930587A CN 1930587 A CN1930587 A CN 1930587A CN A2005800082176 A CNA2005800082176 A CN A2005800082176A CN 200580008217 A CN200580008217 A CN 200580008217A CN 1930587 A CN1930587 A CN 1930587A
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06T15/00—3D [Three Dimensional] image rendering
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Abstract
Medical imaging modalities generate increasingly more and very large three-dimensional data sets. According to an exemplary embodiment of the present invention, a three-dimensional data set of an object of interest is interactively visualized with a varying sampling rate in an image. Advantageously, a focus area may be moved by a user interactively during rendering, wherein the sampling rate of a particular part of the image is defined by its relative position to the focus area. Advantageously, this may allow for an improvement of an overall rendering performance.
Description
The present invention relates to the visual field of 3-D data set in the digital imagery field, especially medical digital imagery field.Especially, the present invention relates to data processing equipment, scanner system and the computer program that the 3-D data set to objects carries out the method for Interactive Visualization and is used for the 3-D data set of objects is carried out Interactive Visualization.
Most of imaging of medical patterns generate increasing 3-D data set day by day, thereby need quick and high-quality rendering intent.
It is a kind ofly to be used for that the function that is sampled to three Spatial Dimensions carries out visual technology by the 2D projection of calculating translucent volume that volume is played up.Volume is played up volumetric data sets is projected in two dimension (2D) plane of delineation or the frame buffer.Volume is played up and be can be used for never observing and analyzing three-dimensional (3D) image with the angle of subject, such as biomedicine, geophysics, computational fluid dynamics, limited feature model and computer chemistry.Volume is played up in the 3D drawing also very useful, such as virtual reality (VR), computer-aided design (CAD) (CAD), computer game, computer graphics and special-effect or the like.Yet various application may be adopted different terms, and are stacked or the like such as 3D data set, 3D rendering, volumetric image and 2D image.
Because picture size increases (for example in medical field) day by day, the interactive mode under high display quality is played up speed and is remained a difficult task, even be still so under the situation that the calculated performance of computing machine improves day by day.
Because growing institute's image data amount (for example in computer tomography (CT) and magnetic resonance (MR) are used), under the situation that does not have quality decline the medical data collection being carried out that volume plays up is a difficult task.Need interactivity so that the clinician can navigate in data set, thereby obtain best visual field.In addition, the additional three-dimensional information that the image sequence that finally draws provides him to perceive from rest image to the observer.
In order to carry out rapid navigation, medical workstation provides " preview " pattern usually, reduces image resolution ratio to carry out the interactive mode renewal during mutual in this pattern.When the stopping alternately of user, with complete quality image to be played up again, this can expend some times (typically being about several seconds).In the workstation of prior art, play up and implement preview mode by carry out even image with low resolution.This method does not consider that the some parts of image is more important than other parts for observer.Usually, for observing certain objects, quality may be too low, because fuzzy or distortion may appear in little details, it is mutual thereby the clinician has to stop.Therefore, for example impossible objects of observing in the motion.On the other hand, for the high resolving power observing pattern of entire image or fully scan pattern need too many computing time, thereby during user interactions, can't provide quick visualization.
An object of the present invention is to provide improved visual to 3-D data set.
According to an one exemplary embodiment of the present invention as claimed in claim 1, above-mentioned purpose can solve by the method that a kind of 3-D data set to objects carries out Interactive Visualization, changes the step of image rendering method during wherein this method allows to carry out interactive input and is included in interactive input.The described change of rendering intent causes picture quality heterogeneous, wherein determines this image based on this 3-D data set.
Advantageously,, can adopt different rendering intents that the zones of different in the image is played up, thereby cause different outward appearances, quality or the resolution of zones of different according to this one exemplary embodiment of the present invention.Therefore, during user interactions, for example can be with first rendering intent to playing up by the region of high interest of user interactions indication, thereby in described region of high interest, obtain high image quality, can play up more uninterested zone with second rendering intent simultaneously, thereby in these more uninterested zones, obtain than low image quality.Region of high interest for example also can be stopped to indicate by user interactions.For example, when the user by driving mouse wheel when data centralization is rolled and be parked in certain zone, can suppose that then the user is interested in this zone, thereby the there is a region of high interest.
According to another one exemplary embodiment of the present invention as claimed in claim 2,, then in the prescan pattern, image is played up with the rendering intent that changes if there is interactive input.On the other hand,, then with constant rendering intent image is being played up again in the scan pattern fully, thereby obtained the E.B.B. or the resolution of entire image if there is not interactive input.
Advantageously, according to this one exemplary embodiment of the present invention, only during the interactive mode input, carry out the change (for example sampling rate change) of rendering intent.If there is not interactive input, this method switches to complete scan pattern, and with playing up fully image is played up.Quick visualization to the objects of 3-D data set inside can be provided like this.
According to another one exemplary embodiment of the present invention as claimed in claim 3, the change of rendering intent changes the interior sampling rate of image during being included in interactive input.The change of sampling rate causes image resolution ratio heterogeneous.
Advantageously, according to this one exemplary embodiment of the present invention, can sample to the zones of different in the image with different sampling rates, thereby obtain different resolution for zones of different.Therefore, during user interactions, can sample to the region of high interest of indicating with high sampling rate by user interactions, and can be than low sampling rate sampled in more uninterested zone.Region of high interest for example also can be stopped to indicate by user interactions.For example, when the user rolls in data set by the driving mouse wheel and is parked in certain zone, can suppose that then the user is interested in this zone, thereby the there is a region of high interest.
According to another one exemplary embodiment of the present invention as claimed in claim 4, carry out described rendering intent based on the information of during playing up, gathering and change, and this information comprises the information about the interactive mode input.
Advantageously, can change the rendering intent (such as sampling rate) in specific image zone by interactively like this, thereby obtain high resolving power for this specific region.On the other hand, can reduce the resolution or the quality of another regional rendering intent by interactively, thereby obtain low resolution, can improve the speed of playing up like this for this another zone.
According to as claim 5 and 6 described another one exemplary embodiment of the present invention, described sampling rate comprises first sampling rate and second sampling rate, wherein the first area in the focus area definition image.With first sampling rate sampled in the first area.In addition, the second area in the image is sampled, and can by user's (perhaps automatically) relative position of this focus area be moved with respect to image based on the information of during playing up, gathering with second sampling rate.
Advantageously, according to this one exemplary embodiment of the present invention, the user can alternatively make focus area a bit be displaced to another point in the image from image, and this can cause the more high-quality or the resolution of this another point in the image.Advantageously, according to an aspect of this one exemplary embodiment of the present invention, can automatically perform the displacement of focus area based on the information of gathering during playing up, described information for example is the information about the motion between picture material or the successive frame.
According to another one exemplary embodiment of the present invention as claimed in claim 7, described information comprises the information of selecting from the group that comprises the estimation of data set complexity, hardware source unavailability and the desired renewal speed of user.
Advantageously, according to this one exemplary embodiment of the present invention, the increase of data set complexity may cause the increase of the rendering intent quality (such as sampling rate) in the focus area, thereby can provide interior high resolving power of focus area or quality for detailed inspection.In addition, according to this one exemplary embodiment of the present invention, the increase of the desired renewal speed of user may cause the decline of the rendering intent oeverall quality (such as sampling rate) in the image.This for example can realize by size that reduces the high-quality zone in the image and the size that increases the inferior quality zone.
According to as claim 8 and 9 described another one exemplary embodiment of the present invention, described playing up comprises ray projection (ray casting), and it may relate to the calculating of depth value and light reflection angle or determine.According to an aspect of the present invention, the change of sampling rate is to carry out along the ray that the person is applied in the ray projection.
According to these one exemplary embodiment of the present invention, can utilize the ray projection to generate the image that has along the resolution of ray change.
According to another one exemplary embodiment of the present invention as claimed in claim 10, a kind of data processing equipment is provided, the data processor that it comprises the storer of the 3-D data set that is used to store objects and is used for this 3-D data set is carried out Interactive Visualization, wherein said Interactive Visualization allows interactive input, and wherein this data processor is suitable for carrying out following operation: load this 3-D data set; And during interactive mode input, change rendering intent in the image.The change of rendering intent causes the non-homogeneous quality of image, and this image is based on, and this 3-D data set determines.
Advantageously, allow like this objects in the 3-D data set is carried out quick visualization.
The another kind of advantageous embodiment of this data processing equipment is set forth in claim 11.
The invention still further relates to a kind of scanner system, the data processor that it comprises the storer of the 3-D data set that is used to store objects and is used for this 3-D data set is carried out Interactive Visualization, wherein said Interactive Visualization allows interactive input, changes the rendering intent in the image during described interactive input.According to an aspect of the present invention, this scanner system is one of them of CT scan device system and MR scanner system.Scanner system according to the present invention is set forth in claim 12 and 13.
Advantageously, can obtain the improved performance of playing up for the objects of concentrating by the three-dimensional data of CT scan device system or the collection of MR scanner system like this.
The invention still further relates to a kind of computer program, it can for example be gone up at processor (such as image processor) and carry out.This computer program can be the part of CT scan device system or MR scanner system for example.According to an one exemplary embodiment of the present invention, these computer programs are set forth in claim 14.These computer programs can preferably be loaded in the working storage of data processor.Thereby described data processor is configured to realize the one exemplary embodiment of method of the present invention.Described computer program can be stored on the computer-readable medium, such as CD-ROM.These computer programs also may reside in (such as WWW) on the network, and can download to the working storage of data processor from these networks.Computer program according to this one exemplary embodiment of the present invention can be write as (for example C++) with any suitable language.
As the main points of one exemplary embodiment of the present invention, as can be seen, the 3-D data set of objects is carried out Interactive Visualization by the rendering intent that during interactive mode input, changes in the image.According to an one exemplary embodiment of the present invention, with high sampling rate sampled in the first area of image, and use than low sampling rate the second area of image is sampled, wherein, the position of first area is can be by the user for example mutual or stop user interactions and come interactively to move by appropriate users.Advantageously, can obtain complete resolution for the interested especially image-region of user like this, then can play up for the not interested especially image-region of user, thereby obtain low resolution with low rate.Can cause like this when reduction assesses the cost, still providing sufficiently high picture quality for the user's interest image section.
The embodiment that these and other aspect of the present invention will be described hereafter becomes more obvious, and with reference to the embodiment that after this describes the present invention is set forth.
Below with reference to accompanying drawings one exemplary embodiment of the present invention is described:
Fig. 1 illustrates the simplicity of illustration according to an embodiment of computer tomography of the present invention (CT) scanner.
Fig. 2 illustrates the simplicity of illustration according to an embodiment of magnetic resonance of the present invention (MR) scanner.
Fig. 3 illustrates the complete quality image of playing up with maximum rate (left side), the image of playing up with even time sampling rate (in), and the focusing preview (right side) of the image of playing up according to the speed to change of an one exemplary embodiment of the present invention.
Fig. 4 illustrates the process flow diagram of an one exemplary embodiment that the 3-D data set to objects according to the present invention carries out the method for Interactive Visualization.
Fig. 5 illustrates the one exemplary embodiment of the present invention according to image processing equipment of the present invention of an one exemplary embodiment that is used to carry out the method according to this invention.
Fig. 1 illustrates the one exemplary embodiment of the present invention according to CT of the present invention (computer tomography) scanner system.With reference to this one exemplary embodiment, the present invention will be described for imaging of medical.Yet, should be noted that the present invention is not limited to the imaging of medical Application for Field, but also can be used for as the baggage check in the baggage item to detect as in the application of the objectionable impurities of explosive one class or other commercial Application (such as testing of materials).
Scanner shown in Fig. 1 is the conical beam CT scanner.CT scan device shown in Fig. 1 comprises around the stand 1 of turning axle 2 rotations.This stand drives by motor 3.Reference numeral 4 indication radiation sources (such as x-ray source), it launches the polychromatic radiation bundle according to an aspect of the present invention.
Pencil-beam 6 is guided to the objects 7 that penetrates the center (being in the inspection area of CT scan device system) that is arranged on stand 1, and strikes on the detecting device 8.As can be as can be seen from Figure 1, detecting device 8 be set at the position relative with radiation source 4 on the stand 1, thereby the surface of detecting device 8 is covered by pencil-beam 6.Detecting device 8 shown in Fig. 1 comprises a plurality of detector element.
In the scan period to objects 7, radiation source 4, aperture system 5 and detecting device 8 rotate on arrow 16 indicated directions along stand 1.In order to make stand 1 rotation that has radiation source 4, aperture system 5 and detecting device 8, motor 3 is connected to motor control unit 17, and Motor Control single 17 is connected to computing unit 18.
In Fig. 1, objects is placed on the travelling belt 19.In the scan period to objects 7, when stand 1 rotated around patient 7, travelling belt 19 made the direction displacement of objects 7 along the turning axle 2 that is parallel to stand 1.Thus, along helical scan path objects 7 is scanned.Travelling belt 19 also can stop in scan period.Replace being provided with travelling belt 19, for example in to the medical applications that likes the patient, can adopt removable bed.Yet should be noted in the discussion above that in described all situations, can also carry out circular scan, do not have displacement this moment on the direction that is parallel to turning axle 2, but the rotation of stand 1 around turning axle 2 only arranged.
Detecting device 8 is connected to computer unit 18.Computing unit 18 receives testing result (i.e. the reading of each detector element of self-detector 8), and determines scanning result based on these readings.Each detector element of detecting device 8 can be suitable for measuring the decay that pencil-beam 6 is produced by objects.In addition, computing unit 18 is communicated by letter with motor control unit 17, so that the motion of stand 1 is coordinated mutually with motor 3 and 20, perhaps coordinates mutually with travelling belt 19.
Can realize described computing unit (this data processing equipment comprises the storer of the 3-D data set that is used to store objects) with being integrated into data processor in the data processing equipment, this computing unit can also be suitable for this 3-D data set is carried out Interactive Visualization, and wherein this Interactive Visualization allows for example to carry out the interactive mode input by the user.Data processor according to one aspect of the invention can be suitable for loading described 3-D data set and be suitable for the sampling rate in the change projected image during the interactive mode input.The change of sampling rate causes the non-homogeneous resolution of projected image, this means the one or more high-resolution areas that generate projected image, and generates one or more low resolution zone.Should be appreciated that described projected image is based on that described 3-D data set gathers.
In addition, described data processor can be suitable for 3-D data set is carried out Interactive Visualization, wherein, if there is interactive input, then with the sampling rate that changes this 3-D data set is played up in the prescan pattern; On the other hand,, then with complete sampling rate this 3-D data set is being played up again in the scan pattern fully, thereby drawn the ultimate resolution of whole projected image if there is not interactive input.At this, carry out described sampling rate based on the information of during playing up, gathering and change, wherein this information comprises the information about described interactive input.
In addition, as can be as can be seen from Figure 1, computing unit 18 can be connected to loudspeaker 21, so that output alarm automatically for example.
Fig. 2 illustrates the simplicity of illustration according to an embodiment of MR scanner system of the present invention.The MR scanner system comprises coil 210, and this coil 210 is provided with and centers on along axle 218 checks that space 217, the patient 215 of examine are positioned at inspection space 217.Advantageously, this patient lies on removable bed or the travelling belt 216, and this removable bed or travelling belt are placed on the bottom of checking space 217.Coil system 210 around this inspection space 217 comprises HF coil 219, comprises the gradient coil 213 and the active shielding coil of Inside coil or shields 212 active shielding arrangement and cryostat 211, during magnetic field produced, these coils were set in this cryostat so that be cooled.The arrangement of gradient coil 213,212 can be connected to gradient amplifier 220.
In addition, according to CT scan device system as shown in Figure 1, this MR scanner system can comprise motor control unit (for example being used for moving conveyor belt 216) and the computing unit (Fig. 2 is not shown) with corresponding motor.In DE 102 02 986 A1 this MR scanner system is described, the content of this application is introduced in this with as a reference.
But Fig. 3 illustrates an example of the complete quality image 31 of 400 pixels, and is drawn the evenly time sampled images 32 to sample than image 31 lower sampling rates by same data set.With low resolution image 32 evenly being played up in preview mode is a kind of being applied in the workstation so that provide rapid image visual technology.Regrettably, this method does not consider that some part of image is more important than other parts for observer.As can from image 32 find out, the quality at picture centre place is too low, smiles to such an extent as to can't observe the schematic face of being described in this image.Therefore, in order to obtain the more detailed view of picture centre, the user must for example stop his mutual, and switches to complete quality image pattern as shown in Figure 31.
Image 33 illustrates non-homogeneous the sampled images (image 32 comprises 100 pixels) of 104 pixels.With complete resolution the center of image 33 is played up, and resolution reduces towards image boundary.According to an one exemplary embodiment of the present invention, focus area can be fixed on picture centre or variable (for example can be moved by the user).In both cases, the user can carry out interactive mode with complete quality to it and observe then in mode very intuitively with in his the interested object shift-in focus area.
Therefore, the present invention combines interactive speed (response time that is guaranteed) by reducing sampling rate (thereby reducing the user to its picture quality of interesting areas not too) with optimum picture quality.Under identical computation complexity, the picture quality that is perceived is owed sampling better than the tradition shown in the image 32.
According to an one exemplary embodiment of the present invention, the user can move into focus area (perhaps vice versa) with the zone of " interested " in mode simply and intuitively.Like this, can be implemented in the complete quality visualization under the interactivity frame rate, this be traditional sampling can't realize.
An exemplary embodiment of the present invention is described below.The output image that x multiply by y pixel is divided into three zones: interior zone or first area, outer peripheral areas or second area, and perimeter or the 3rd zone.
Interior zone covers the center rectangle of about 1/3x1/3y pixel, and will play up it with complete resolution.
Outer peripheral areas or second area cover about 2/3x2/3y pixel the center rectangle remove zone outside this interior zone.To on both direction, play up it, thereby obtain a sample for per four pixels with half-resolution.
The remainder of perimeter overlay image, and will playing up it with 1/4th resolution is compared thereby play up with complete quality, obtains 1/16 sample for per unit area.
It should be noted that, though this embodiment of the present invention adopts three zones of playing up with three different sampling rates, but said method also can be used for two zoness of different playing up with two sampling rates, perhaps is used for the different images zone of any other number that will play up with different sampling rates.
In the situation of three above-mentioned different sampling rates, the sum of its pixel value that accurately calculates is approximately:
1/3x·1/3y+1/4(2/3x·2/3y-1/3x·1/3y)+1/16(xy-2/3x·2/3y)＝11/48xy
It lacks slightly than the 1/4xy corresponding to evenly half-resolution sampling, and the computation complexity that therefore produces this preview also is similar.Yet core is played up with complete quality, and by navigational tool commonly used, the user can move into the part that is most interested in the center in viewport.Like this, the user can observe with lively this part that shows of complete resolution, still there is impression the peripheral region simultaneously, and described peripheral region is to play up with the quality that reduces.
The size of aforesaid inside, periphery and perimeter and the sum of inferior sampling rate and zones of different can change.
Can dynamically change described parameter based on following factor:
A) complexity of data set;
B) unavailability of hardware resource; And
C) type of interaction.For example during fast mutual, can reduce " high-quality " zone so that realize image update faster, and slow mutual during, increases the size in one or more " high-quality " zone, so that raising overview image quality.
In addition, focus area can not be fixed on picture centre, but can followingly be provided with:
A) be provided with by the user; Perhaps
B) be provided with automatically based on picture material, need high-resolution minor structure thereby for example focus area is moved to; Perhaps
C) based on the motion between the successive frame (being complete resolution, is low resolution) is set automatically under the situation of very little motion under the situation of very big motion.
In addition, focus criteria not only can be determined the sampling rate in the image area, and can determine any other parameter of playing up algorithm of permissible velocity-quality tradeoffs.An example is to change sampling rate at the situation lower edge ray that adopts the ray projection.
In addition, should be appreciated that according to an aspect of the present invention, also can not change sampling rate, but for example change the arithmetic accuracy that is used to play up.For example, if adopt single precision floating datum (for example by 32 bit format of employing) to replace double precision representation (for example according to IEEE 64 bit format), can be that cost reduces and assesses the cost then with lower precision according to ieee standard for the calculating of image color value.As another example, some rendering intents need the arithmetic function of calculation of complex, such as e
x, ln (x) or sqrt (x).This class function can replace with simple linearity or polynomial approximation, is to be cost with the arithmetic precision equally.In any case, general effect will be the change along image quality in images or resolution, thereby assesses the cost with playing up to compare to have reduced along the high precision of entire image.
In addition, described focus criteria can combine with adaptively sampled technology, described adaptively sampled technology for example relate to based on depth value, surface normal, view direction and light vector at least one of them calculate or definite depth value, light reflection angle and projected image in sample frequency change.Thereby,, just can realize that having in the focus area high-resolutionly play up fast by exemplary process according to the present invention is combined with adaptively sampled technology.
Fig. 4 illustrates the process flow diagram of an one exemplary embodiment that the 3-D data set to objects according to the present invention carries out the method for Interactive Visualization.This method starts from step S1, gathers the 3-D data set of objects afterwards at step S2, for example gathers by the polychromatic electromagnetic radiation source of generation polychrome beam with by the ray detector that detects this polychrome beam.Subsequently, judge whether there is interactive input at step S3.When having interactive input, gather the information of playing up at step S5.This is played up information and can comprise about the described interactive information of importing, such as moving or the desired renewal speed of user of focus area.In addition, the described information of playing up can comprise information about availability of hardware resources or data set complexity.After playing up information acquisition, play up projected image based on the information of playing up of being gathered with the sampling rate that changes at step S6, thereby for example in the interior zone of adjusting by the user that focus area limited, play up this image, in each zone of this interior zone outside, then play up this image with low resolution with complete resolution.
Afterwards, at step S7, this method rebound step S3 judges whether there is interactive input at this.If judge there is not interactive input at step S3, then this method jumps to step S9, determines whether to have carried out again to play up at this.Play up if carried out again, then this method is in the interactive mode input of step S10 products for further, and afterwards, this method jumps to step S5 to play up information acquisition.If judging to carry out as yet at step S9 plays up again, then with complete sampling rate projected image is played up again at step S4, afterwards, this method jumps to step S10 to wait for another interactive input.
Like this, during interactive mode input, gather and play up information, and for example play up information based on this and carry out projection continuously with the sampling rate that changes and play up with closed loop.If no longer include any interactive input, then leave this closed loop, and if this image is not carried out as yet and played up again, then projected image is played up again with the full images quality.Yet if judge at step S9 and to have carried out the playing up again of this image, this method is waited for another interactive input at step S10, and afterwards, this method is leapt to step S5 to play up intelligence sample.
Fig. 5 illustrates an one exemplary embodiment according to image processing equipment of the present invention of an one exemplary embodiment that is used to carry out the method according to this invention.Image processing equipment shown in Figure 5 comprises CPU (central processing unit) (CPU) or image processor 151, and it is connected to and is used for the storer 152 that the image of objects (such as the patient) is described in storage.Image processor 151 can be connected to a plurality of I/O networks or diagnostic device (such as MR equipment or CT equipment).This image processor is also connected to display device 154 (for example computer monitor), calculates or adaptive information or image to be used for being presented at image processor 151.The operator can carry out reciprocation by keyboard 155 and/or other output device and image processor 151 not shown in Figure 5.
In addition, by bus system 153, Flame Image Process and processor controls 151 can also be connected to for example movement monitor, this movement monitor monitors the motion of objects.Carry out under the situation of imaging in for example lung to the patient, motion sensor can be an exhalation sensor.In the situation that heart is carried out imaging, motion sensor can be electrocardiograph (ECG).
It should be noted that, though the embodiments of the invention that describe with reference to the accompanying drawings change sampling rate so that the picture quality of the improvement of region of high interest is provided, but this method is not limited to the change of sampling rate, but can also for example change rendering intent, the arithmetic precision that is used to play up such as change is for example by replacing the complex arithmetic function (such as e with simple linearity or near plan of polynomial expression
x, ln (x) or sqrt (x)).
Claims (14)
1, a kind of method that the 3-D data set of objects is carried out Interactive Visualization, wherein this method allows interactive input, and this method may further comprise the steps: change the rendering intent in the image during this interactive mode input; Wherein, the change of described rendering intent causes picture quality heterogeneous; And wherein, determine this image based on this 3-D data set.
2, method according to claim 1, wherein, if there is interactive input, then the rendering intent with described change is played up this image in the prescan pattern; And wherein,, then with constant rendering intent this image is being played up again in the scan pattern fully, thereby obtained the E.B.B. of entire image if there is not interactive input.
3, method according to claim 2, wherein, the change of described rendering intent changes the interior sampling rate of described image during being included in described interactive input; And wherein, the change of described sampling rate causes image resolution ratio heterogeneous.
4, method according to claim 1 wherein, is carried out the change of described rendering intent based on the information of gathering during playing up; And wherein, this information comprises the information about described interactive input.
5, method according to claim 3, wherein, described sampling rate comprises first sampling rate and second sampling rate; Wherein, focus area limits the first area in the described image; Wherein, with first sampling rate sampled in the first area; And
Wherein, with second sampling rate second area in this image is sampled.
6, method according to claim 5, wherein, based on the information of during playing up, gathering, can be by the user or the relative position of described focus area is moved with respect to described image.
7, method according to claim 4, wherein, described information comprises selected information from the group that comprises the estimation of data set complexity, availability of hardware resources and the desired renewal speed of user.
8, method according to claim 1, wherein, described playing up comprises the ray projection.
9, method according to claim 8, wherein, the change of described sampling rate is to carry out along the ray that is applied in the described ray projection.
10, a kind of data processing equipment, comprise the storer of the 3-D data set that is used to store objects and be used for this 3-D data set is carried out the data processor of Interactive Visualization, wherein said Interactive Visualization allows interactive input, and wherein this data processor is suitable for carrying out following operation: load this 3-D data set; During described interactive input, change the rendering intent in the image; Wherein, the change of described rendering intent causes the non-homogeneous resolution of this image; And wherein, determine this image based on this 3-D data set.
11, data processing equipment according to claim 10 wherein, if there is interactive input, is then played up this 3-D data set with the rendering intent of described change in the prescan pattern; And wherein,, then with complete rendering intent this 3-D data set is being played up again in the scan pattern fully, thereby drawn the ultimate resolution of entire image if there is not interactive input; And wherein, based on the change of the described rendering intent of during playing up, gathering of information and executing; And wherein, this information comprises the information about described interactive input.
12, a kind of scanner system, comprise the storer of the 3-D data set that is used to store objects and the data processor that is used for this 3-D data set is carried out Interactive Visualization, wherein said Interactive Visualization allows interactive input, and wherein this data processor is suitable for carrying out following operation: load this 3-D data set; During described interactive input, change the rendering intent in the image; Wherein, the change of described rendering intent causes the non-homogeneous quality of this image; And wherein, determine this image based on this 3-D data set.
13, scanner system according to claim 12, wherein, this scanner system is one of them of CT scan device system and MR scanner system.
14, a kind of computer program that is used for the 3-D data set of objects is carried out Interactive Visualization, wherein said Interactive Visualization allows interactive input, and wherein when carrying out this computer program on data processor, this computer program makes this data processor carry out following operation: load this 3-D data set; During described interactive input, change the rendering intent in the image; Wherein, the change of described rendering intent causes the non-homogeneous quality of this image; And wherein, determine this image based on this 3-D data set.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04101048.9 | 2004-03-15 | ||
| EP04101048 | 2004-03-15 | ||
| PCT/IB2005/050836 WO2005091226A1 (en) | 2004-03-15 | 2005-03-07 | Image visualization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1930587A true CN1930587A (en) | 2007-03-14 |
| CN1930587B CN1930587B (en) | 2011-05-25 |
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| CN2005800082176A Active CN1930587B (en) | 2004-03-15 | 2005-03-07 | Image visualization |
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| EP (1) | EP1728216B1 (en) |
| JP (1) | JP2007529809A (en) |
| CN (1) | CN1930587B (en) |
| WO (1) | WO2005091226A1 (en) |
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-
2005
- 2005-03-07 US US10/598,745 patent/US7817829B2/en active Active
- 2005-03-07 WO PCT/IB2005/050836 patent/WO2005091226A1/en not_active Application Discontinuation
- 2005-03-07 EP EP05708965.8A patent/EP1728216B1/en active Active
- 2005-03-07 JP JP2007503469A patent/JP2007529809A/en active Pending
- 2005-03-07 CN CN2005800082176A patent/CN1930587B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2005091226A1 (en) | 2005-09-29 |
| JP2007529809A (en) | 2007-10-25 |
| EP1728216A1 (en) | 2006-12-06 |
| CN1930587B (en) | 2011-05-25 |
| US20070183649A1 (en) | 2007-08-09 |
| EP1728216B1 (en) | 2019-09-11 |
| US7817829B2 (en) | 2010-10-19 |
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